Urea-Thiourea Copolymer Resin from Japan
Urea-thiourea copolymer resin where urea units predominate over thiourea, used in paper impregnation. It is classified as a urea resin under the subheading note's monomer predominance rule, with combined urea and thiourea units exceeding 95%.
Duty Rate — Japan → Canada
0%
Import Tips
• Provide the copolymer composition showing urea units predominate by weight
• Keep technical data sheets for CBSA verification
• Ensure the resin is in primary form, not applied to paper